I've seen similar dysfunctions in other big orgs where a feature or bugfix would need to cross team boundaries and the outcome inhabits zones of vaguely defined

I've seen similar dysfunctions in other big orgs where a feature or bugfix would need to cross team boundaries and the outcome inhabits zones of vaguely defined responsibility. The guy you argued with sounds like they were semi-justifying this with the typical "noogler" rose colored glasses.